diff --git a/sf_plan/models/custom_plan.py b/sf_plan/models/custom_plan.py
index bcb15d69..60618f1d 100644
--- a/sf_plan/models/custom_plan.py
+++ b/sf_plan/models/custom_plan.py
@@ -85,7 +85,7 @@ class sf_production_plan(models.Model):
             item.sudo().production_id.workorder_ids.filtered(
                 lambda b: b.routing_type == "装夹预调").workpiece_delivery_ids.write(
                 {'production_line_id': item.production_line_id.id,
-                 'plan_start_processing_time': item.plan_start_processing_time})
+                 'plan_start_processing_time': item.date_planned_start})
             # item.sudo().production_id.plan_start_processing_time = item.date_planned_start
 
     # @api.onchange('state')